8340842 has 8 divisors (see below), whose sum is σ = 12580932. Its totient is φ = 4147200.

The previous prime is 8340841. The next prime is 8340847. The reversal of 8340842 is 2480438.

It can be written as a sum of positive squares in 2 ways, for example, as 6405961 + 1934881 = 2531^2 + 1391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8340841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11159 + ... + 11882.

Almost surely, 2^8340842 is an apocalyptic number.

8340842 is a deficient number, since it is larger than the sum of its proper divisors (4240090).

8340842 is a wasteful number, since it uses less digits than its factorization.

8340842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23224.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 8340842 is about 2888.0515923370. The cubic root of 8340842 is about 202.8009405426.

The spelling of 8340842 in words is "eight million, three hundred forty thousand, eight hundred forty-two".